Cellulose fiber modified with poly(methyl vinyl...

Details Cellulose fiber modified with poly(methyl vinyl... Cellulose fiber modified with poly(methyl vinyl...

D - Textiles, Paper

21

H

D21H 11/20 (2006.01) A61L 15/28 (2006.01)

Patent

CA 2072746

Disclosed is a fiber comprising chemically bonded together, (a) a conventional cellulosic fiber, such as a Kraft fiber or a chemithermomechanical pulp fiber; (b) poly(methyl vinyl ether-co-maleate) copolymer, such as the acid form of a 1:1 (molar) po- ly(methyl vinyl ether-co-maleate) copolymer, preferably having number average molecular weight of about 67,000-80,000; and (c) a polyol, such as polyethylene glycol; also disclosed are methods for making such fibers, especially evaporatively depositing an intimate mixture of the copolymer and polyol on the discrete fiber followed by thermally crosslinking at specific temperatures for limited periods; absorbent paper which can be made by wet-laying the fiber, especially in admixture with conventional fiber; and derivative paper structures, such as multiply disposable absorbent towels.

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